BeagleBone Black: The Sub-$50 ARM Linux Board

BeagleBone Black: The Sub-$50 ARM Linux Board: The BeagleBone Black has been one of the popular low-cost ARM development boards in recent months for budget-minded hobbyists due to its $45 price-tag, being Linux friendly, and support for powering off a USB cable. While it may be a cheap ARM development board, is its performance too dauntingly slow?